Can you charge an iPhone 18 Pro Max with a Samsung 25W Super Fast?
Worked out from the manufacturers’ specifications. Have a different charger? Pick it below the answer.
It charges at normal speed. Fast charging needs 60 W or more.
Estimated from the manufacturer’s stated fast-charge time, with the device idle.
Try another charger
How long to 50% with each charger
Shorter bar is faster. The highlighted row is the charger on this page.
Want it faster?
Full speed needs 60 W or more with AVS. These chargers get there:
iPhone 18 Pro Max charging specs
- Fast charging needs
- 60 W + AVS
- Max input (approx.)
- 52 W
- Samsung 25W Super Fast
- 25 W · USB-C · PPS
Sources: Apple: Fast charge your iPhone · Apple: iPhone 18 Pro Max tech specs · 9to5Mac: How to fast charge iPhone 18 Pro · MacRumors: iPhone 18 Pro Max charging speed test · iDrop News: iPhone 18 Pro needs an AVS charger for top speed · Samsung: Wall Charger for Super Fast Charging (25W) EP-TA800 · Samsung: 25W Super Fast Charging wall charger EP-TA800 (specs). Checked 2026-10-17.
Quick answers
Is it safe to charge the iPhone 18 Pro Max with the Samsung 25W Super Fast?
Yes. USB Power Delivery negotiates power, so the iPhone 18 Pro Max only takes what it can handle and the charger only gives what it can supply. A weaker charger is slower, not dangerous.
How many watts does the iPhone 18 Pro Max need for fast charging?
60 W or more, from a USB-C PD charger that supports AVS. Fast charges to 50% in about 15 minutes with a 60W-capable USB-C adapter that supports Adjustable Voltage Supply (AVS), such as Apple’s 40W Dynamic Power Adapter (60W Max). Without AVS, reports show it settles at roughly 27–30W.
How long does the iPhone 18 Pro Max take to charge with the Samsung 25W Super Fast?
About 23 min to 50% and 1 h 5 min to full, estimated with the device idle.